Harry graham



(No Model.)

HQGRAHAM. HANGER FOR LAYING FIREPROOF FLOORS. No. 495,672. Patented Apr.18, 1893.

W/TNESSES: INVENTOH A TTOHNEYS.

UNITED STATES PATENT OFFIcE.

HARRY GRAHAM, OF NEW YORK, N. Y., ASSIGNOR TO SARAH GRAHAM, OF

SAME PLACE.

HANGER FOR LAYING FIREPROOF FLOORS.

SPECIFICATION forming part of Letters Patent No. 495,672, dated April18, 1893.

Application filed January 21, 1893. $erial No. 459,260. (No model.)

To aZZ whom it may concern.-

Be it known that I, HARRY GRAHAM, a citizen of the United States,residing'in the city, county, and State of New York, have inventedcertain new and useful Improvements in Hangers for Laying FireproofFloors, of which the following is a specification.

This invention relates to an improved hanger for laying fire-prooffloors, by which the expensive and time-consuming suspension of thehangers which were used heretoforein laying fire-proof floors betweeniron beams are dispensed with, and a strong, reliable, andquickly-operated support for the planking on which the floor rests isobtained; and the invention consists of a hanger for fire-proof floors,which consists of two main-pieces, one piece being provided with adownwardly bent inner end and the other with holes, both main piecesbeing provided with upwardly-bent hooks at their outer ends, and of alever-handle that is fulcrumed to the downwardly-bent end of onemain-piece, so that the mainpieces can be readily applied to or removedfrom the lower flanges of two adjacent beams in connection with alocking chain between the handle and the perforated main-piece, as willbe fully described hereinafter and finally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a side elevation of myimproved hanger for laying fire-proof floors, shown in the act of beingapplied to the lower ends of two adjacent I-beams. Fig. 2 isa sideelevation of my improved hanger, shown as applied to the beams andlocked in position for supporting the planking for the floor. Fig. 3 isa plan-view of Fig. 2.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A and .B represent the two main-pieces of myimproved hanger for fire-proof floors. The main-piece A is provided witha downwardly-bent inner end a and with an upwardly-bent hook at, whichis made integral with the main-piece and bent up from the same at rightangles thereto. The main-piece B is provided in its body with holes band at the outer end with a hook I) that is bent up like the hook a, atright-angles with the plane of the main-piece B. The hook-shaped ends aand b of the main-pieces A and B are intended to engage the outerflanges of two adjacent I-beams of abuilding when the hanger is to beapplied for use.

Between the main-pieces A and B is arranged a lever-handle O which is fulcrumed at d to the bent end a of the main-piece A, according to thedistance which has to be spanned by the hanger. When the distancebetween the I-beams is small, the inner end of the lever-handle G ispivoted to one of the holes which are nearer to the outer hookshaped endof the main-piece B, while when the distance between the I-beams islarger, the inner end of the lever-handle is pivoted to the holes nearerto the inner end of the main-piece B. The pivot-connection between theinner end of the lever-handle C and the perforated main-piece B is madeby a pivotpin, which is provided with ahead at one end and a spring-keye that is inserted into a transverse hole at the opposite end of thepivot-pin e, as shown clearly in Fig. 3. Any other pivot-connectionbetween the mainpiece B and the lever-handle C may be made,

as I do not confine myself to the special pivotconnection shown in thedrawings.

To the outermost hole I) of the main-piece B is applied a hook to whicha chain D is applied which is attached to rings or hooks f which areapplied to two holes in the outer portion of the lever-handle C so thatwhen the main-pieces A and B are locked to the base of the I-beams bythe lever-handle as shown in Fig. 2, the chain D serves for retainingthe three parts of my improved hanger rigidly in locked position, sothat the planks can be readily placed in the hangers between the beams,as shown in dotted lines in Fig. 2, said planks forming thereby therequired support for laying the fire-proof floor between the beams.

My improved hanger is used as follows: 5 The main-piece B is firstadjusted to the distance between two adjacent I-beams of the building byadjusting the pivot-connection between the main-piece B and theleverhanger O to the proper hole in the main-piece B. The outerhook-shaped ends of both mainpieces A and B are then applied to theouter flanges of the bases of the I-beams, as shown in Fig. 1, themain-pieces being located sidewise of each other, and the lever-handleat one side of a perpendicular line drawn through its fulcrum d. Thelever-handle O is then moved in lateral direction so that the mainpiecesA and B are moved in inward direction alongside of each other untiltheir hookshaped ends are drawn tightly onto the bases of the beams, asshown in Fig. 2. The connecting chain D is then hung into the hookf andattached to the hook f so that the structure composed by the main-piecesA and B, and the chain D forms one rigidly connected whole on which theplanks which are arranged longitudinally between the beams, can besecurely supported. When the floor between the beams is completed, thehanger is detached from the beams. This is accomplished by disconnectingthe locking-chain D from one of the hooks f of the lever D, so that thelatter can be swung into downward and lateral direction shown in Fig. 1,by which motion the main-pieces A and B are moved alongside of eachother in outward direction until the hook-shaped ends of the main-piecesA and B clear the bases of the beams, so that the hanger can be readilyremoved from the same, it being then ready for putting up for use forcompleting the floor in the space between other beams.

Bymy hanger the expensive and time-consuming erection of the suspendedhangers for the planking by means of hanger-bolts and joists which wereused heretofore for supporting the planks on which the fire-proof floorwas supported when placed between the beams is dispensed with, so thatthe laying of fire-proof floors can be accomplished by the contractor orbuilder much quicker and less expensively than heretofore.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A hanger for laying fire-proof floors, composed of a main-piecehaving a downwardly-bent inner end and an upwardly bent hook at itsouter end, a second mainpiece provided with holes and an upwardly-benthook at its outer end, a lever-hanger fulcrumed to the bent inner end ofone mainpiece and pivotally connected to one of the holes of theperforated main-piece and a looking chain for connecting the leverhandle with the perforated main-piece, substantially as set forth.

2. A hanger for laying fire-proof floors, which is composed of amain-piece havinga downwardly-bent inner end and an upwardlybent hook atits outer end, asecond main-piece having holes in its body and anupwardlybent hook at its outer end a lever-handle which is fulcrumed tothe inner end of one main-piece and pivotally connected to one of theholes of the perforated main-piece, said lever handle being provided atits outer end with holes having rings, and a locking-chain applied tosaid rings and connected with a hook on the perforated main-piece,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

HARRY GRAHAM.

Witnesses:

PAUL GoEPEL, I-I. WILLARD GRIFFITHS.

